CVE-2019-11760: Buffer Overflow

Published Oct 22, 2019
·
Updated

A fixed-size stack buffer could overflow in nrappkit when doing WebRTC signaling. This resulted in a potentially exploitable crash in some instances.

Other sources

A flaw was discovered in Mozilla Firefox and Thunderbird where a fixed-stack buffer overflow could occur during WebRTC signalling. The vulnerability could lead to an exploitable crash or leak data.

Affected Software

18 affected componentsFixes available
redhat/firefox<0:68.2.0-4.el6_10
0:68.2.0-4.el6_10
redhat/thunderbird<0:68.2.0-2.el6_10
0:68.2.0-2.el6_10
redhat/firefox<0:68.2.0-1.el7_7
0:68.2.0-1.el7_7
redhat/thunderbird<0:68.2.0-1.el7_7
0:68.2.0-1.el7_7
redhat/firefox<0:68.2.0-2.el8_0
0:68.2.0-2.el8_0
redhat/thunderbird<0:68.2.0-1.el8_0
0:68.2.0-1.el8_0
redhat/firefox<68.2
68.2
redhat/thunderbird<68.2
68.2
Mozilla Firefox<70.0
Mozilla Firefox ESR<68.2
Mozilla Thunderbird<68.2
Canonical Ubuntu Linux=16.04
Mozilla Thunderbird<68.2
68.2
Mozilla Firefox ESR<68.2
68.2
Mozilla Firefox<70
70
debian/firefox
157.0.1-1
debian/firefox-esr
140.12.0esr-1~deb12u1153.5.0esr-1~deb12u1140.15.0esr-1~deb13u1153.5.0esr-1~deb13u1153.4.0esr-1153.5.0esr-1
debian/thunderbird
1:140.12.0esr-1~deb12u11:140.17.0esr-1~deb12u11:140.12.0esr-1~deb13u11:140.17.0esr-1~deb13u11:153.4.0esr-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/firefox to a version that resolves this vulnerability.

    Fixed in 0:68.2.0-4.el6_10
  2. Upgrade

    Upgrade redhat/thunderbird to a version that resolves this vulnerability.

    Fixed in 0:68.2.0-2.el6_10
  3. Upgrade

    Upgrade redhat/firefox to a version that resolves this vulnerability.

    Fixed in 0:68.2.0-1.el7_7
  4. Upgrade

    Upgrade redhat/thunderbird to a version that resolves this vulnerability.

    Fixed in 0:68.2.0-1.el7_7
  5. Upgrade

    Upgrade redhat/firefox to a version that resolves this vulnerability.

    Fixed in 0:68.2.0-2.el8_0
  6. Upgrade

    Upgrade redhat/thunderbird to a version that resolves this vulnerability.

    Fixed in 0:68.2.0-1.el8_0
  7. Upgrade

    Upgrade redhat/firefox to a version that resolves this vulnerability.

    Fixed in 68.2
  8. Upgrade

    Upgrade redhat/thunderbird to a version that resolves this vulnerability.

    Fixed in 68.2
  9. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 68.2
  10. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 68.2
  11. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 70
  12. Upgrade

    Upgrade debian/firefox to a version that resolves this vulnerability.

    Fixed in 157.0.1-1
  13. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 140.12.0esr-1~deb12u1Fixed in 153.5.0esr-1~deb12u1Fixed in 140.15.0esr-1~deb13u1Fixed in 153.5.0esr-1~deb13u1Fixed in 153.4.0esr-1Fixed in 153.5.0esr-1
  14. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:140.12.0esr-1~deb12u1Fixed in 1:140.17.0esr-1~deb12u1Fixed in 1:140.12.0esr-1~deb13u1Fixed in 1:140.17.0esr-1~deb13u1Fixed in 1:153.4.0esr-1
  15. Upgrade

    Upgrade Mozilla Firefox to a version that resolves this vulnerability.

    Fixed in 70
  16. Upgrade

    Upgrade Mozilla Thunderbird to a version that resolves this vulnerability.

    Fixed in 68.2
  17. Upgrade

    Upgrade Mozilla Firefox ESR to a version that resolves this vulnerability.

    Fixed in 68.2

Event History

Oct 22, 2019
CVE Published
12:00 AM
Jan 8, 2020
CVE Published
via MITRE·07:51 PM
Data Sourced
via MITRE·07:51 PM
DescriptionWeakness
Data Sourced
via NVD·08:15 PM
DescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:14 PM
Description
Feb 20, 2026
Data Sourced
via Ubuntu·08:32 PM
RemedyDescriptionSeverityAffected Software
Oct 15, 2026
Data Sourced
via Debian·07:01 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2019-11760.

2

What software versions are affected by this vulnerability?

This vulnerability affects Firefox versions prior to 70, Thunderbird versions prior to 68.2, and Firefox ESR versions prior to 68.2.

3

How severe is CVE-2019-11760?

CVE-2019-11760 has a severity rating of 8.8 (high).

4

What is the description of this vulnerability?

A fixed-size stack buffer could overflow in nrappkit when doing WebRTC signaling, leading to a potentially exploitable crash.

5

How do I fix CVE-2019-11760?

To fix CVE-2019-11760, update your Firefox to version 70 or later, Thunderbird to version 68.2 or later, or Firefox ESR to version 68.2 or later.

Company

Resources

Contact

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